Optical measurements in citizen projects

Air quality is affected by cars, aircraft, industry, domestic heating and natural emissions. Optical sensing is a great way to track the effects in detail.

Particulate matter is one of the air pollutants that directly affects people's well-being.

Today, most people have a smartphone that can easily be upgraded to an optical spectrometer.

The optically upgraded smartphones record a wide range of atmospheric data as well as timestamps and location.

With many people collecting data on the move, large areas are mapped with fine detail and time resolution.

Especially in densely populated areas, data are more detailed than satellite observations.

A very warm thank you to all the companies and institutes that made this publication possible.

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